Madam Senthamarai, who is in her 40s and now teaches in another school, said: "It helped bond me and the scouts closer. We had a lot of funand it was a great way to spend the weekend."

Last year, she and her husband, Mr Saravanan Sadanandom, also in his 40s, and their 10-year-old daughterhad signed up to join the Big Walk, but had to pull out when Mr Saravanan fell ill.

Madam Senthamarai said: "Our daughter will have fun and we are looking forward to doing this activity together as a family."

Quality manager Mark Alton, 56, an Australian who has worked in Singapore since 2008, is looking to walk with his wife, Jennifer.

He said: "She has not visited the National Stadium before, so the Big Walk will be a chance for her to see the stadium."

Mr Alton added: "I am busy with my work and Jennifer is busy at home and with some part-time jobs that she does. So we welcome any chance to do things together, be it for health or recreation or both."